Most tumblers in these listings are made from stainless steel, often specified as 18/8 or food‑grade stainless steel.
Many tumblers include a lid and a reusable straw; some listings also include handles or built‑in carry loops.
Listings cite leakproof or leak‑resistant lids, locking push‑button covers, and multi‑position lids that seal around reusable straws or close fully to help prevent spills.
Warranty coverage varies by model; examples in these listings include one‑year limited warranties and lifetime limited warranties.
Capacities in these listings range from 16 fl oz up to 40 fl oz, with explicit sizes including 16, 24, 30, 32, and 40 ounces.
Cold retention varies by model. Example claims in these listings range from about 9–11 hours to 24 hours, and in some cases up to about 40 hours; a few descriptions also state '2 days' for iced drinks.
